Answer:
-25.
Step-by-step explanation:
What is the difference of outputs for any two inputs that are one value apart?
If you look at the column of "x" [input], you will see that they are 1 unit apart. You can thus look at the corresponding values of "f(x)" [output] and determine their difference. Checking all of those, gives us the difference (same for all).
Output 2 - Output 1:
Output 3 - Output 2:
Output 4 - Output 3:
Output 5 - Output 4:
So the difference of outputs for any two inputs one value apart are
We proceed to graph the points and verify which is within the shaded area
so
points B and D are not within the shaded area
point C is not a solution because it is in the limit and the limits are not included
point A is inside the shaded area
therefore
the answer is
the point A
see the attached figure